NullStream.h

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#pragma once
 
#include <streambuf>
#include <ostream>
 
class NullBuffer : public std::streambuf {
    protected:
        int overflow(int c) override {
            return traits_type::not_eof(c); // Indicate success, but discard the character
        }
 
        std::streamsize xsputn(const char* /*s*/, std::streamsize n) override {
            return n; // Indicate success, but discard the characters
        }
};
 
class NullOStream : public std::ostream {
    private:
        inline static NullBuffer null_buffer;
    public:
        NullOStream() : std::ostream(&null_buffer) {}
};